Motor and pump mounting



Feb. 20, 1934. T. TAFEL. JR 1,947,665

MOTOR AND PUMP MOUNTING Filed Oct. 16, 1931 4 Sheets-Sheet 1 INVEN TOR Feb. 20, 1934. T TAFEL, JR 1,947,665

MOTOR AND PUMP MOUNTING Filed Oct. 6, 193], 4 Sheets-Sheet 2 t k N 0 N l\ 9 INVENTOR fj mwm Feb. 20, 1934. 'T TAFEL' JR 1,947,665

MOTOR AND PUMP MOUNTING Filed OCt. 16, 1931 4 She e Its' Sheet h 0.: INVENTOR Feb. 20, 1934. v TAFEL, JR 1,947,665

MOTOR AND PUMP MOUNTING Filed Oct. 6, 1951 4 Sheets-Sheet 4 INVENTOR Patented Feb. 20, 1934 UNITED STATES PATENT OFFICE MOTOR AND PUMP MOUNTING Applieation October 16,

3 Claims.

This invention relates to kitchen fixtures such as a sink having a combined dishwasher and laundry tray, and in particular to improvements in the construction and mounting of the motor and pump assembly thereon.

An object of this invention is to provide improved motor and pump support for a dishwasher whereby the compartment will be relieved of vibration of the motor.

Another object is to provide improved means for mounting the operating parts of a dishwasher whereby the parts may be readily secured in position and may be as readily removed therefrom.

A still further object is to provide a motor and pump assembly for a dishwasher which is simple in construction, easy to install, and requires the least possible amount of attention to keep in working order.

These and other objects of this invention which will be made readily apparent to those skilled in this particular art are accomplished by means of this invention, one embodiment of which is described in the following specification and illus- 5 trated in the accompanying drawings, wherein;

Figure 1 is a front view in section of a sink having a dishwasher embodying my invention and having portions thereof broken away for convenience of illustration;

Fig. 2 is a side view partially in section of the machine showing in detail certain features of my invention;

Fig. 3 is a side view in section similar to Figure 2 and showing other features of my invention;

Fig. 4 is a view in front elevation of the pump and motor mounting having portions thereof broken away for convenience of illustration, and;

Fig. 5 is a partial view in section showing in detail the manner in which one end of the motor supporting plate is secured to the washing compartment.

The several figures of the drawings herein are similar in many respects to the figures of the drawings forming a part of my copending applications Ser. Nos. 569,212 and 569,213, filed on even date herewith and in which other features of the apparatus are being claimed.

Referring to the drawings in detail, designates a sink or other kitchen fixture having a compartment 11 formed integral therewith which may be used as a laundry or dishwashing tray. The bottom of the compartment 11 slopes toward one corner thereof and has an opening 12 therein 1931. Serial No. 569,211

leading to a sump 13 disposed between the compartment 11 and a drain pipe 14.

In order that the compartment 11 may be filled with water to permit its use as a laundry tray or the like, a stopper 15 is provided for closing the bottom of the sump 13. The top of the stopper 15 is connected to a lifting rod 16 which extends through a nipple 1'7 in the sump casing and has a ball 18 thereon which bears against the end of the nipple and forms a pivot for the lifting rod. The stopper is moved into its open and closed positions by an operating handle 19 on the sink, having a wire member 20 connecting it with the outer end of the lifting rod 16.

The bottom of the compartment 11 is provided with openings 21 and 22 which, when the fixture is being used as a laundry tray, are closed by screw plugs (not shown). When it is desired to use the compartment 11 as a dishwasher these plugs are removed and a plug 23 having a pin 24 therein is threaded into the opening 21 and a nozzle member 25 is placed in the opening 22. A bayonet joint or any other connection, which may be readily unfastened, may be used to secure the nozzle in the opening 22. Revolubly mounted over the pin 24 is a sleeve 24' supporting a rack 26 in which the dishes to be washed are placed.

After the dishes have been placed in the rack 26, the stopper 15 is moved to its closed position and hot washing water is poured into the compartment 11 until the bottom of the rack 26 is covered. A suitable cleansing agent, such as washing powder, is then added to the water which is circulated in the chamber by a centrifugal pump 2'7.

The centrifugal pump 27 which has the inlet side connected to the sump 13 and the outlet side connected to the nozzle 25, draws the washing water from the compartment 11 and forces it through the nozzle which directs it against the dishes in the rack 26 which are arranged in such a way therein as to act as turbine blades. The washing water therefore scrubs the dishes and also rotates the rack 26. The pump is driven by a motor 28. So that the rack 25 will rotate freely, the sleeve 24 has openings 24" in the upper end thereof, through which the washing water is conveyed to the pin 24 to lubricate the same.

The pump 27 comprises a housing 29, a pump shaft 30 mounted in the housing and an impeller 31 mounted on pump shaft 30. The pump shaft is supported in a bearing 32 which is held in position on the shaft by a thrust collar 33 pinned to the shaft. A packing gland 34 prevents Water from leaking from the pump housing around the pumpshaft 30. So that the pump will operate efliciently and require a minimum amount of attention, an opening 35 is formed in the impeller bearing 32 for lubricating the bearing. The opening 35 communicates with the inlet side of the pump and the soapy, greasy washing water passing therethrough thoroughly lubricates the bearing 32. The drive shaft of the motor28 is connected. to the pump shaft 30.

In order that the pump 27 and motor 28 may be readily attached to the bottom of the compartrnent 11 when it is desired to convert the foe ture into a dishwasher, they are suspended as a unit from a plate 37 having a hooked lug 38pmjecting from one end thereof. When the pump and motor unit is to be attached to the bottom of the compartment the lug38 is hung on a rod 39 which is carried by lugs 40 projecting from the bottom of the compartment 11. A lug 41 extending upwardly from the pump housing 29 is bolted to a lug 42 (Fig. 5) on the bottom of the cornpartment 11 and completes the installation of the motor and pump unit. It is readily apparent that since the motor is loosely connected to the bottom of the compartment, vibration in the fixture will be materially reduced. To further reduce the amount of vibration in the washing compartment, the rod 39 and the bolt connecting the lugs ll and 42 may be covered with rubber bushings which insulate the pointsof suspension of the motor and pump unit.

To prevent access of foreign matter, such as particles of food or the like washed from the dishes to the pump 27, aperforated strainer 45 is placed in the sump 13. The strainer has a ring 46 around the top thereof which seats on the bottom of the compartment 11. So that the strainer may be readily removed and cleaned the sump is located at a corner of the compartment and a chain 4'7 connected to a bail 48 on the strainer is provided for lifting the strainer out of the sump without the necessity of removing the rack 26.

From this construction it is readily apparent that I have designed a fixture having a washing compartment which may be readily converted newness from a laundry tray into a dishwasher or from a dishwasher into alaundry tray. It is also apparent that I have provided a fixture which may be sold as a laundry tray and which may later be converted into a dishwasher with very little added cost to the purchaser.

t is understood that certain modifications may be made therein without departing from the spirit of my invention or the scope of the appended claims.

What I claim as new and desire to secure by Letters Patent is:

l. The combination with a support having a plurality of depending lugs, of means for loosely suspending a motor and pump assembly from said lugs comprising a member supporting said motor and pump, a hook portion formed on one end of said member, a rod extending between two of said lugs over which the hook portion is adapted to be loosely hung, and means cooperating with another of said lugs for securing the other end of said member to the support.

2. The combination with a support, of means for attaching a motor and pump assembly thereto, comprising a bar suspending from said support, a member carrying said motor and pump, one end of said member being adapted to be hooked over said bar and means for securing the opposite end of said assembly to said support whereby the end of said member will be held in position on said bar.

3. The combination with a support, of means for attaching a motor and pump assembly thereto, comprising a bar suspended from said sup port, a plate secured to said assembly, a bent end on said plate adapted to hook over said bar,-

an apertured lug depending from said support, a lug on said assembly having an aperture therein adapted to register with the aperture in the lug depending from said support, and means extend- 51f- 

